Conductive force transmission assembly and fuel cell stack

A technology of components and conductors, applied in the direction of fuel cells, fuel cell parts, electrical components, etc., can solve problems such as uneven pressure distribution, fuel cell performance degradation, etc., to improve current distribution, eliminate accuracy errors, and ensure consistency sexual effect
CN114464860APending Publication Date: 2022-05-10FUXIN DARE AUTOMOTIVE PARTS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
FUXIN DARE AUTOMOTIVE PARTS
Publication Date
2022-05-10

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Abstract

The invention relates to the technical field of new energy, in particular to a conductive force transfer assembly and a fuel cell stack. The conductive force transmission assembly comprises an electric conductor, and a plurality of protruding parts are evenly distributed on the surface of the electric conductor. According to the invention, the electric conductor with the uniformly distributed convex parts is arranged between the short reactor assemblies, and the uniformly distributed convex parts of the electric conductor uniformly transmit the pressure applied by the previous short reactor assembly to the next short reactor assembly, so that the pressure between the short reactor assemblies is uniformly distributed again; and the phenomena of stress concentration and non-uniform distribution in the fuel cell stack are eliminated, so that the current distribution in the fuel cell is improved, and the phenomenon that the performance of the fuel cell is greatly reduced due to local water logging or local hydrogen deficiency is avoided.
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Description

technical field

[0001] The present application relates to the field of new energy technology, in particular to a conductive force transmission component and a fuel cell stack. Background technique

[0002] At present, fuel cell stacks usually need to provide appropriate pressure to meet the sealing pressure between the plates, and provide appropriate uniform pressure for fuel cell stacks to reduce contact resistance. However, large-scale fuel cell stack assembly generally requires 300-500 For a single cell, due to the precision error generated by the manufacturing of the single cell and the cumulative error generated by the stack, the internal pressure of the fuel cell stack has stress concentration and uneven distribution, and the current distribution caused by the uneven pressure is uneven. Local water flooding or local hydrogen deficiency will greatly reduce the performance of the fuel cell. Therefore, how to solve the technical problem of uneven pressure distribution ins...

Claims

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